Tappet cover for internal-combustion engines



Sept 2, mm

5. E. FEKETE TAPPET COVER FOR INTERNAL COMBUSTION ENGINES Filed Jtily 28 1923 W a M m n 1 ll Patented Sept. 2, 1924.

UNETEAD STATES PATENT @FHQE- STEPHEN I. FEKETE, OF DETROIT, MICHIGAN, ASSIGNOR 'IO HUDSON MOTOR GAE GOIVIPANY, 013 DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

'IAPPET COVER FOR INTERNAL-COMBUSTION ENGINES.

Application filed July 28, 1923. vSerial No. 654,324.

T all whom it may concern:

Be it known that LSTEPHEN I. FEKETE, a citizen of the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful.

Improvement in Tappet Covers for Internal- Combustion Engines, of which the following is a specification, reference being had therein to the accompanying drawings.

The present invention has for its object an improved cover for the tappet chamber of the cylinder block of an internal combustion engine. In internal combustion engines of the T-head and L-head types, and particularly those in which the cylinders are cast in a single block, the valve tappets are located in a chamber in the side of the casting. This. chamber has ordinarily been covered by a cover or covers which are bolted in place. As other parts of the mechanism, such as the carbureter, or the electrical apparatus are usually placed close to the covers, their removal has been an inconvenient matter and in many cases has made the use of a single cover impossible because its length was too great for the space through which it had to be moved. Where two or more covers have been used, the cylinder casting has been formed with a vertical par tition or bar to form a support for the proximate edges of the two covers. The tappets are freely lubricated and their movement spatters the oil about the interior of the chamber and against the inside of the covers, so it is essential that there be an oil tight joint between the covers and the cylinder block.

The invention described herein furnishes a single cover for the tappet chamber. This cover extends the entire length ofthe tappet chamber but can be removed notwithstanding the presence of a carbureter or other obstructions. The invention makes possible an important simplification of the cylinder casting, and reduces its cost because no partition or bar across the tappet chamber is necessary. It also tends to reduce the noise of the engine somewhat by deadening the vibration.

The invention will be fully understood from the following description when taken in connection with the accompanying drawings, and the novel features thereof will be pointed out and clearly defined in the W claims at the close of this specification.

In the drawings Fig. 1 is a side elevation showing the.

tappet chamber cover consists of two parts 11 and 12 of the shape shown in Flgs. 3 and at. The parts are hinged together pref erably by a flexible imperforate member 13 secured to the proximate edges of the two halves of the cover. In practice, leather is preferred for this purpose and is held in placed by a reinforcement or batten 14 and rivets 15. In practice, the leather is also glued to the parts 11 and 12 before the rivets are inserted thereby ensuring an oil tight joint. The halves of the cover are he d in place in the ordinary manner, that is by nuts 17, secured to studs 18, which pass through holes 19 in the halves of the cover. The upper, lower and outside end edges rest upon the seats formed on the cylinder block casting, but the two proximate edges do not require any support being hinged together by the flexible member 13. As already explained this does away with the necessity for a vertical partition. or bar which would otherwise be placed behind the inner vertical edges of the halves of the cover, and which adds considerably to the expense of the cylinder casting, and interferes with the accessibility of the tappets and valves.

At 20 is shown the usual oil shield of sheet metal which deflects away from the joint the oil which runs from the inside face of the cover.

lVhen the cover is to be removed, the nuts 17 are taken off and then one half 11 is swung on the hinge formed by the flexible member 13, thus shortening the over-all length of the cover and permitting it to be moved toward the dashboard or radiator as the case may be and thus taken out even though the carbureter is in the way and would prevent the removal of a unitary structure.

What I claim is:

1. The improved cover for the tappet chamber of the cylinder block of an internal combustion engine which comprises two halves formed of metal and secured together by a hinge which unites their proximate edges.

2. In combination with the cylinder block of an internal combustion engine having a tappet chamber on the side, a cover for said chamber comprising two halves hinged together along their proximate edges.

3. The improved cover for the tappet chamber of the cylinder block of an internal combustion engine which comprises two 15- halves secured together by an imperforate hinge of flexible material.

4. The improved cover for the tappet chamber of the cylinder block of an internal combustion engine which comprises two 20 metallic halves and a hinge of leather.

In testimony whereof I affix my signature.

"STEPHEN I. FEKETEQ 1 

